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extern crate serde_json;
use std::collections::HashMap;
use std::io::BufRead;
use std::io::Write;
use crate::mass::{Mass, MassType};
use crate::math::distance;
use crate::server::connection::ServerConnection;
impl ServerConnection {
pub fn server_navigation(&mut self, masses: &mut HashMap<String, Mass>) {
let mut ship = masses.remove(&self.name).unwrap();
let ship_clone = ship.clone();
if let MassType::Ship {
ref mut navigation, ..
} = ship.mass_type
{
let navigation = navigation.as_mut().unwrap();
navigation.verify_target(ship_clone.position, &masses);
let mut within_range: HashMap<&String, &Mass> = masses
.iter()
.filter(|&(_, mass)| {
distance(ship_clone.position, mass.position) < navigation.range
})
.collect();
within_range.insert(&self.name, &ship_clone);
if self.open {
let send = serde_json::to_string(&within_range).unwrap() + "\n";
if let Err(_err) = self.stream.write(send.as_bytes()) {
self.open = false;
};
let mut recv = String::new();
if let Ok(result) = self.buff_r.read_line(&mut recv) {
if result == 0 {
self.open = false;
}
if !recv.is_empty() {
navigation.give_target(recv.replace("\n", ""));
}
}
}
}
masses.insert(self.name.clone(), ship);
}
}
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